Well, to make a long story short, my MAP tank CE2 lasted me two days at 6 volts.. I was getting ready to head to bed last night, I took a draw waited a few seconds to cool down the went to take another and nothing.. I must have burnt the coil out of it.. My tank is half full, so later today I will empty it, and get the CE2 changed.. Looks like I might be ordering that Pro Vari sooner than I thought....